JAC HFC4DA1-2C - Section IV. DTC List

Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
116
S/N DTC Meaning
287 P121C 3
rd
cylinder IQA error
288 P121D 4
th
cylinder IQA error
289 P121E 5
th
cylinder IQA error
290 P121F 6
th
cylinder IQA error
291 P1220 The signal level of intercooler downstream temperature sensor is relatively high.
292 P1221 The signal level of intercooler downstream temperature sensor is relatively low.
293 P122A The positive deviation of throttle controller exceeds the upper limit for a long time.
294 P122B The negative deviation of throttle controller is below the lower limit for a long time.
295 P1230 Error reported in monitoring the OBDII maximum threshold correction
296 P1231 Error reported in monitoring the OBDII minimum threshold correction
297 P1245 System degradation information
298 P1250
An error is triggered when the ET time of the 1
st
cylinder reaches the maximum limit
(when the ZEL comes into effect).
299 P1251
An error is triggered when the ET time of the 2
nd
cylinder reaches the maximum
limit (when the ZEL comes into effect).
300 P1252
An error is triggered when the ET time of the 3
rd
cylinder reaches the maximum limit
(when the ZEL comes into effect).
301 P1253
An error is triggered when the ET time of the 4
th
cylinder reaches the maximum limit
(when the ZEL comes into effect).
302 P1254
An error is triggered when the ET time of the 1
st
cylinder reaches the minimum limit
(when the ZEL comes into effect).
303 P1255
An error is triggered when the ET time of the 2
nd
cylinder reaches the minimum limit
(when the ZEL comes into effect).
304 P1256
An error is triggered when the ET time of the 3
rd
cylinder reaches the minimum limit
(when the ZEL comes into effect).
305 P1257
An error is triggered when the ET time of the 4
th
cylinder reaches the minimum limit
(when the ZEL comes into effect).
306 P1400 EGR valve circuit is open.
307 P1401 Overtemperature of EGR valve bridge-H chip
308 P1402 EGR valve circuit is short to power supply.
309 P1403 EGR valve circuit is short to ground.
310 P140A The signal level of the EGR cooler downstream temperature is relatively high.
311 P140B The signal level of the EGR cooler downstream temperature is relatively low.
312 P1410 The positive deviation of throttle controller exceeds the upper limit for a long time.
313 P1411 The negative deviation of throttle controller is below the lower limit for a long time.
314 P1415 The time for transforming from RGN to NRM mode is too long.
315 P1418 The indicator actuator circuit for EGR bypass regulating valve is open.